ABFM Sleep Medicine common mistakes
ABFM Sleep Medicine · Understand the traps and how to avoid them.
Assigning a diagnosis of obstructive sleep apnea to any patient with daytime sleepiness and a large neck circumference without confirming an elevated apnea-hypopnea index on a sleep study, or treating snoring alone as OSA.
Snoring and obesity are so strongly associated with OSA that candidates substitute the risk profile for the diagnostic criterion, and many patients with these features have primary snoring or another cause of sleepiness.
What to do instead
Anchor OSA diagnosis to a documented AHI or respiratory disturbance index on polysomnography or home sleep apnea testing; list snoring and obesity as risk factors, not diagnostic findings, and consider alternative causes of sleepiness when testing is negative.
Choosing an initial management strategy for OSA without matching device or surgery to the individual patient's anatomy, severity, and adherence likelihood, for example recommending upper airway surgery as first-line therapy for moderate OSA in an otherwise healthy adult, or prescribing an oral appliance for severe OSA without discussing efficacy limits.
Candidates memorize a hierarchy of treatments and apply it uniformly rather than stratifying by severity, anatomy, and patient preference.
What to do instead
Use PAP as first-line for moderate-to-severe OSA; reserve oral appliances for mild-to-moderate disease or PAP intolerance; reserve surgery for specific anatomic correctable lesions or documented PAP failure after multidisciplinary evaluation.
Failing to recognize that central sleep apnea, Cheyne-Stokes respiration, and obesity hypoventilation syndrome require different management than obstructive events, and treating them all with CPAP titration alone.
All three present as apneas or hypopneas on a sleep study and candidates conflate them under a single 'sleep apnea' label.
What to do instead
Differentiate by absence of respiratory effort in central events, presence of a crescendo-decrescendo pattern in Cheyne-Stokes, and awake hypercapnia with elevated bicarbonate in obesity hypoventilation; choose adaptive servo-ventilation, BiPAP, or nocturnal noninvasive ventilation accordingly and address the underlying cardiac or neurologic cause.
Diagnosing restless legs syndrome from a single symptom such as leg discomfort without eliciting the full required clinical picture, or attributing RLS symptoms to a primary sleep disorder when iron deficiency, pregnancy, or a medication (e.g., dopamine antagonist, SSRI) is the cause.
RLS is a clinical diagnosis with five required criteria, and candidates shortcut to the most memorable feature while skipping the secondary-cause workup.
What to do instead
Confirm all five criteria (urge to move, worse at rest, relieved by movement, worse in evening/night, not explained by another condition), check ferritin and iron studies, review medications, and treat the underlying cause before starting a dopamine agonist.
Treating insomnia with a benzodiazepine or sedating antihistamine as first-line pharmacotherapy and skipping cognitive behavioral therapy for insomnia, or continuing hypnotics indefinitely without a taper plan.
Candidates default to the familiar prescription reflex and underestimate CBT-I's superior durability and safety profile.
What to do instead
Make CBT-I first-line for chronic insomnia; reserve pharmacotherapy for short-term or adjunctive use, choose agents with favorable dependency profiles, and document a discontinuation plan.
Missing the diagnosis of narcolepsy or idiopathic hypersomnia by attributing excessive daytime sleepiness to poor sleep hygiene or depression and failing to obtain a multiple sleep latency test after a negative or unremarkable overnight study.
Sleepiness is nonspecific, and candidates stop after the overnight polysomnogram without pursuing the MSLT when the history suggests central hypersomnolence.
What to do instead
When sleepiness persists despite adequate sleep time and treated OSA, obtain MSLT after overnight polysomnography; interpret mean sleep latency and sleep-onset REM periods in the context of the prior night's sleep and medication status.
Failing to screen for and manage sleep-disordered breathing in patients with conditions strongly affected by it, such as atrial fibrillation, resistant hypertension, heart failure, or poorly controlled type 2 diabetes, treating only the primary condition.
Candidates compartmentalize by presenting complaint and do not connect the wake-sleep cycle to cardiometabolic disease.
What to do instead
Build OSA screening into the evaluation of resistant hypertension, atrial fibrillation, heart failure, and difficult-to-control diabetes; document screening and refer for testing when pretest probability is high.
Ignoring circadian rhythm disorders and mistaking them for insomnia or hypersomnia, e.g., labeling delayed sleep-wake phase disorder as insomnia or prescribing a hypnotic instead of timed light and melatonin.
Circadian disorders present with sleep complaints that overlap insomnia and hypersomnia, and candidates do not take a careful sleep-wake timing history or use sleep logs/actigraphy.
What to do instead
Obtain a detailed 1-2 week sleep diary or actigraphy when circadian misalignment is suspected; treat delayed phase disorder with morning bright light and appropriately timed low-dose melatonin rather than sedatives.
Failing to recognize and manage sleep problems in shift workers and in patients with safety-sensitive occupations, or clearing a patient for driving or hazardous work without assessing residual sleepiness and adherence to therapy.
Candidates focus on the sleep complaint itself and overlook the public-safety and occupational consequences of untreated sleepiness.
What to do instead
Ask about work schedule and driving, quantify sleepiness with a validated scale, counsel on drowsy-driving risk, document treatment adherence before clearance, and recommend scheduled napping and light exposure for shift workers.
Overlooking the effect of medications, substances, and comorbid psychiatric or medical illness on sleep, for example attributing new insomnia to a primary insomnia disorder when an activating antidepressant, steroid, or untreated depression is the driver.
Candidates treat sleep complaints in isolation and do not systematically review the medication list, substance use, and psychiatric history.
What to do instead
Perform a structured review of all medications and substances, screen for depression and anxiety, and address modifiable contributors before or alongside a primary sleep disorder diagnosis.